1 files changed, 56 insertions, 0 deletions
diff --git a/libs/angle/src/common/event_tracer.cpp b/libs/angle/src/common/event_tracer.cpp
new file mode 100644
index 000000000..c9eb5e307
--- /dev/null
+++ b/libs/angle/src/common/event_tracer.cpp
@@ -0,0 +1,56 @@
+// Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "common/event_tracer.h"
+
+#include "common/debug.h"
+
+namespace angle
+{
+
+const unsigned char *GetTraceCategoryEnabledFlag(const char *name)
+{
+    angle::Platform *platform = ANGLEPlatformCurrent();
+    ASSERT(platform);
+
+    const unsigned char *categoryEnabledFlag = platform->getTraceCategoryEnabledFlag(name);
+    if (categoryEnabledFlag != nullptr)
+    {
+        return categoryEnabledFlag;
+    }
+
+    static unsigned char disabled = 0;
+    return &disabled;
+}
+
+Platform::TraceEventHandle AddTraceEvent(char phase, const unsigned char* categoryGroupEnabled, const char* name, unsigned long long id,
+                                         int numArgs, const char** argNames, const unsigned char* argTypes,
+                                         const unsigned long long* argValues, unsigned char flags)
+{
+    angle::Platform *platform = ANGLEPlatformCurrent();
+    ASSERT(platform);
+
+    double timestamp = platform->monotonicallyIncreasingTime();
+
+    if (timestamp != 0)
+    {
+        angle::Platform::TraceEventHandle handle =
+            platform->addTraceEvent(phase,
+                                    categoryGroupEnabled,
+                                    name,
+                                    id,
+                                    timestamp,
+                                    numArgs,
+                                    argNames,
+                                    argTypes,
+                                    argValues,
+                                    flags);
+        ASSERT(handle != 0);
+        return handle;
+    }
+
+    return static_cast<Platform::TraceEventHandle>(0);
+}
+
+}  // namespace angle